I'm sure they used the term Quadro to jump onto the Quadraphonic music association of the time period (Lf, Rf, Ls, Rs). Quad in this case, meaning standard film 4 channel (left, center, right, & surrounds). What I found amazing was there was an independent production in 1977 which had a release...
The original 3-D version of "Hypnotic Hick" will be included on the upcoming release of "Wings of the Hawk".
Both will be viewable in either 2-D or 3-D.
btw- Thanks for mentioning the thread in the streaming section, as it's good to see others quickly caught this issue as well. (And the poor imdb reason given by someone there doesn't fit at all, and is typical of an imdb posting) For me, even on my first listen it was hard not to miss.
No, it's not my opinion. I've listened to the 5.1 track and then listened to the same section with the mono track. Many sound effects found in the new 5.1 mix often disappear in the original mono mix. And they weren't there in the previous remixes. If you're familiar with the original mix...
And with the dynamic range one would expect for premiere Roadshow engagements.
Just looking at the audio waveforms, it is clear the mono track is pretty compressed.
Each title will have it's own unique challenges, but often in these cases there are things going on behind the scenes that are never known.
For example, Kino's upcoming bluray of THUNDER BAY was Universal's very first multi-channel (L/C/R) theatrical release, just before "It Came From Outer...
The feature was remixed for 5.1 for the 2009 DVD release which was later carried over to the bluray version.
If you can find the older first DVD release, it has the original 4.0 mix.